Title
Q-SIFT: Efficient feature descriptors for distributed camera calibration
Abstract
We consider camera self-calibration, i.e. the estimation of parameters for camera sensors, in the setting of a visual sensor network where the sensors are distributed and energy-constrained. With the objective of reducing the communication burden and thereby maximizing network lifetime, we propose an energy-efficient approach for self-calibration where feature points are extracted locally at the cameras and efficient descriptions for these features are transmitted to a central processor that performs the self-calibration. Specifically, in this work we use reduced-dimensionality quantized approximations as efficient feature descriptors. The effectiveness of the proposed technique is validated through feature matching, and epipolar geometry estimation which enable self-calibration of the network.
Year
DOI
Venue
2009
10.1109/ICASSP.2009.4959967
ICASSP
Keywords
Field
DocType
epipolar geometry estimation,efficient feature descriptors,feature point,camera sensor,feature matching,visual sensor network,camera calibration,efficient description,network lifetime,camera self-calibration,central processor,estimation,geometry,robustness,image sensors,parameter estimation,energy efficient,epipolar geometry,image sensor,computer vision,principal component analysis,sensor network,histograms,feature extraction,calibration,quantization,energy efficiency
Computer vision,Scale-invariant feature transform,Image sensor,Epipolar geometry,Pattern recognition,Computer science,Visual sensor network,Camera auto-calibration,Robustness (computer science),Feature extraction,Camera resectioning,Artificial intelligence
Conference
ISSN
Citations 
PageRank 
1520-6149
2
0.45
References 
Authors
9
2
Name
Order
Citations
PageRank
Chao Yu1273.90
Gaurav Sharma264056.64